count=0
for i in range(1,5):
    for j in range(1,5):
        for k in range(1, 5):
            if i !=j and j !=k and i !=k:
                num =i*100+j*10+k
                print(num)
                count +=1
print(f"共有{count}个互不相同且无重复数字的三位数")